Mutrofin, Lika, et al. “Effectiveness The Cooperative Problem Based Learning (CPBL) and Learning Motivation on Mathematical Literacy Abilities and Collaboration Skills”. Jurnal Teknologi Pendidikan : Jurnal Penelitian Dan Pengembangan Pembelajaran, vol. 9, no. 1, Jan. 2024, pp. 70-78, doi:10.33394/jtp.v9i1.10469.